[PATCH net-next 1/3] net: phy: export phy_queue_state_machine

[Heiner Kallweit]

We face the issue that link change interrupt and link status may be
reported by different layers. As a result the link change interrupt
may occur before the link status changes.
Export phy_queue_state_machine to allow PHY drivers to specify a
delay between link status change interrupt and link status check.

Signed-off-by: Heiner Kallweit <hkallwe...@gmail.com>
Suggested-by: Russell King - ARM Linux admin <li...@armlinux.org.uk>
---
 drivers/net/phy/phy.c | 8 +++++---
 include/linux/phy.h   | 2 +-
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index e88854292..20955836c 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -29,6 +29,8 @@
 #include <linux/uaccess.h>
 #include <linux/atomic.h>
 
+#define PHY_STATE_TIME HZ
+
 #define PHY_STATE_STR(_state)                  \
        case PHY_##_state:                      \
                return __stringify(_state);     \
@@ -478,12 +480,12 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq 
*ifr, int cmd)
 }
 EXPORT_SYMBOL(phy_mii_ioctl);
 
-static void phy_queue_state_machine(struct phy_device *phydev,
-                                   unsigned int secs)
+void phy_queue_state_machine(struct phy_device *phydev, unsigned int jiffies)
 {
        mod_delayed_work(system_power_efficient_wq, &phydev->state_queue,
-                        secs * HZ);
+                        jiffies);
 }
+EXPORT_SYMBOL(phy_queue_state_machine);
 
 static void phy_trigger_machine(struct phy_device *phydev)
 {
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 7180b1d1e..b133d59f3 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -188,7 +188,6 @@ static inline const char *phy_modes(phy_interface_t 
interface)
 
 
 #define PHY_INIT_TIMEOUT       100000
-#define PHY_STATE_TIME         1
 #define PHY_FORCE_TIMEOUT      10
 
 #define PHY_MAX_ADDR   32
@@ -1137,6 +1136,7 @@ int phy_driver_register(struct phy_driver *new_driver, 
struct module *owner);
 int phy_drivers_register(struct phy_driver *new_driver, int n,
                         struct module *owner);
 void phy_state_machine(struct work_struct *work);
+void phy_queue_state_machine(struct phy_device *phydev, unsigned int jiffies);
 void phy_mac_interrupt(struct phy_device *phydev);
 void phy_start_machine(struct phy_device *phydev);
 void phy_stop_machine(struct phy_device *phydev);
-- 
2.21.0